Oklahoma General Knowledge CDL Prep Test (OK) 4

4.9 out of 5 (62 votes)
80% Passing score
20 Questions
4 Mistakes allowed
As someone eagerly looking forward to your commercial driving license (CDL), you've got a great tool at your disposal: our fourth Oklahoma CDL prep test. It's designed to mirror the real DMV test in 2026, offering you a slice of the challenge without the stress. Picture it as a rehearsal where you get to perfect your performance before the main show. The permit practice test consists of 20 sample CDL test questions, and you'll need to correctly answer at least 16 to pass. One of the standout features of our Oklahoma CDL prep test is the variety in questions. We've assembled a comprehensive pool of DMV questions to cover a broad spectrum of driving knowledge. This ensures you're not just memorizing Oklahoma permit test answers for 2026, but truly understanding the rules and regulations of the road. It's a perfect opportunity for you to build a strong foundation for your driving career. Staying current is key in the ever-evolving world of driving laws and regulations. That's why our Oklahoma CDL practice test is diligently updated. The 2026 version you'll be taking reflects the most up-to-date rules, meaning you're learning with the latest and most relevant information. It's like having a personal guide to the latest driving standards. We understand that preparing for the Oklahoma DMV CDL test in 2026 can be nerve-wracking. That's where our practice permit test shines - it offers a no-pressure environment. It's an opportunity to test your knowledge in a relaxed setting, where the only goal is learning and improvement. This approach helps in building confidence, ensuring you're calm and prepared when it's time for the actual CDL permit test. So, sit back, relax, and take your time with our fourth Oklahoma CDL practice test. It's a valuable step in your preparation, designed to make you feel confident and well-prepared. Remember, every question you tackle here is a step closer to acing that DMV test and earning your CDL in 2026! Let's ace this together!
FREE CDL Practice Test App
Pass your Oklahoma CDL General Knowledge test with the NextDoorDriving app. Real questions and answers—100% free and ad-free.
Download on the App Store

Sample Oklahoma CDL Test Questions - General Knowledge

Question 1

Baggage and freight on a bus should be secured to prevent damage and accomplish which safety goals?

  1. A Allow the driver to move freely
  2. B Keep every emergency door and window accessible
  3. C Protect riders if an item falls or shifts
  4. D All of the above

Correct answer: D – All of the above

Bus baggage and freight must be secured so the driver can move and operate the vehicle freely. Cargo must not block aisles, doors, windows, or other emergency escape routes. Proper securement also protects passengers from items that could fall or shift during braking, turning, or an emergency maneuver.

Source: Oklahoma Commercial Driver’s License Manual — Section 4, § 4.2, “Loading and Trip Start”

Question 2

Which vehicle must stop 15 to 50 feet from railroad tracks before crossing in Oklahoma?

  1. A Every commercial vehicle without exception
  2. B A bus, whether occupied or unoccupied
  3. C A commercial vehicle only when traveling at night
  4. D A commercial vehicle only at an unmarked crossing

Correct answer: B – A bus, whether occupied or unoccupied

A bus must stop within 50 feet of, but not closer than 15 feet to, the tracks whether it is occupied or unoccupied. The driver must look and listen for approaching trains or other on-track equipment and verify that crossing is safe. The bus must cross in a gear that allows completion without shifting gears on the tracks.

Source: 47 O.S. § 11-702(A) – Commercial motor vehicles and buses - Railroad crossing, 49 CFR § 392.10 – Railroad grade crossings; stopping required

Question 3

What does a Cross Road warning sign tell you?

This sign warns drivers to _____________.
  1. A Slow vehicles must take the roadway to the right
  2. B A detour begins on the right
  3. C A stop sign is immediately ahead
  4. D An intersection with possible turning or entering traffic is ahead

Correct answer: D – An intersection with possible turning or entering traffic is ahead

On Oklahoma roads, the Cross Road symbol is placed in advance of an intersection. It alerts drivers that vehicles may turn or enter from the intersecting roadway. Reduce speed as conditions require, scan both sides, and be ready to respond to traffic entering your path.

Source: Manual on Uniform Traffic Control Devices for Streets and Highways, 11th ed., Rev. 1 — § 2C.41, “Intersection Warning Signs (W2-1 through W2-8)”

Question 4

According to the Oklahoma CDL manual, what portion of truck-driver crash deaths result from rollovers?

  1. A About 10%
  2. B About 20%
  3. C More than half
  4. D All of them

Correct answer: C – More than half

The manual states that rollovers account for more than half of truck-driver deaths in crashes. A high center of gravity makes a loaded truck easier to overturn. Keeping cargo low and centered and reducing speed before turns, ramps, and curves helps control rollover risk.

Source: Oklahoma Commercial Driver’s License Manual — § 6.1.1, “Rollover Risks”

Question 5

What does gross combination weight (GCW) represent?

  1. A Only the combined weight of the cargo and occupants
  2. B The manufacturer’s maximum weight rating for the power unit
  3. C Only the weight of the trailer and its cargo
  4. D The actual combined weight of the power unit, towed units, and their loads

Correct answer: D – The actual combined weight of the power unit, towed units, and their loads

GCW is the actual combined weight of the power unit and all towed units as loaded. It includes the vehicles themselves and their cargo. Do not confuse GCW with gross combination weight rating, or GCWR, which is a rating determined under the CDL definitions.

Source: Oklahoma Commercial Driver’s License Manual — § 3.2.1, “Definitions You Should Know”, 49 CFR § 383.5 — Definitions

Question 6

Which inspection finding is a suspension-system defect?

  1. A A shock absorber that is leaking
  2. B A tire with low air pressure
  3. C A loose wheel lug nut
  4. D A cracked brake component

Correct answer: A – A shock absorber that is leaking

Shock absorbers are part of the suspension system and must be secure, undamaged, and free of leaks. The Oklahoma vehicle-inspection procedure also includes checking springs, mounts, U-bolts, and air bags. Tire pressure, lug nuts, and brake components belong to other inspection categories.

Source: Oklahoma Commercial Driver’s License Manual — § 11.5.2, “Springs/Mounts, U-Bolts and Air Bags and Shocks”

More Oklahoma CDL Practice Tests
Other CDL Endorsements